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Publication numberUS3349175 A
Publication typeGrant
Publication dateOct 24, 1967
Filing dateJan 6, 1964
Priority dateJan 22, 1963
Also published asDE1203309B
Publication numberUS 3349175 A, US 3349175A, US-A-3349175, US3349175 A, US3349175A
InventorsIvar Mo, Ragnar Meisingset Kare
Original AssigneeInt Standard Electric Corp
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Method for synchronizing cryptographic teleprinter equipment
US 3349175 A
Abstract  available in
Images(26)
Previous page
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Claims  available in
Description  (OCR text may contain errors)

METHOD FOR SYNCHRONIZING CRYPTOGRAPHIC TELEPRINTER EQUIPMENT Filed Jan. 6, 1964 26 Sheets-Sheet 2 I nuenlorS KAR' R. MEISINGSET VAR NO Atto rney Get. 24, 1967 K. R. MEISINGSET ET AL 3,349,175

METHOD FOR SYNCHRONIZING CRYPTOGRAPHIC TELEPRINTER EQUIPMENT Filed Jan. 6, 1964 26 Sheets-Sheet 5 Inventors KARE R. ME/S/NGSET IVAR MO Horn? y Oct. 24, 1967 K. R. MEIS'INGSET ET AL 3,349,175

METHOD FOR SYNCHRONIZING CRYPTOGRAPHIC TELEPRINTER EQUIPMENT Filed Jan. 6, 1964 26 Sheets-5heet 7 Inventors KARE k. ME/SM/GSET IVAR MO A I W/ 240M154 K- R. MEISINGSET ET AL 3,349,175

Oct. 24, 1967 METHOD FOR SYNCHRONIZING CRYPTOGRAPHIC TELEPRINTER EQUIPMENT 26 Sheets-Sheet 8 Filed Jan.

Oct. 24, 1967 K- R. MEISINGSET ET AL METHOD FOR SYNCHRONIZING CRYPTOGRAPHIC TELEPHINTER EQUIPMENT Filed Jan. 6. 1964 26 Sheets-Sheet 9 S IL asa a x Qz 5% i? 5,

Attorney Oct. 24, 1967 ME|S|NGSET ET AL 3,349,175

' METHOD FOR SYN-CHRONIZING CRYPTOG RAPHIC TELEPRINTER EQUIPMENT Filed Jan. 6. 1964 26 Sheets-Sheet l0 MAN. 5 A H he c5 //2/// lnvenlors KARE R. ME/S/NGSE [VAR Mo Oct. 24, 1967 K- R. MEISINGSET ET AL 3,349,175

METHOD FOR SYNGHRONIZING CRYPTOGRAPHIC TELEPRINTER EQUIPMENT Filed Jan. 6, 1964 0, FF/O a, FF/l 26 Sheets-$heet 12 Ilium/ g film WLJJ L I lnvenlors KARE R. Mf/S/NGSET VAR MO Oct. 24, 1967 ME|s|NGsET ET AL 3,349,175

METHOD FOR SYNCHRONIZING CRYPTOGRAPHIC TELEPRINTER EQUIPMENT Filed Jan. 6, 1964 26 Sheets-Sheet 15 QEWESQ Oct. 24, 1967 K. R. MEISINGSET ET AL 3,349,175

METHOD FOR SYNCHRONIZING CRYPTOGRAPHIC TELEPRINTER EQUIPMENT Filed Jan. 6, 1964 26 Sheets-Sheet 14 Oct. 24, 1967 K. R. MEISINGSET ET AL 3,349,175

METHOD FOR SYNGHRONIZING CRYPTOGRAPHIC TELEPRINTER EQUIPMENT Filed Jan. 6, 1964 26 Sheets-Sheet 16 wpm p ow

WIWUUUU A, mmlmmm W 1 r At ornq Oct. 24, 1967 K. R. MEISINGSET ET AL 3,349,175

METHOD FOR SYNCHRONIZING CRYPTOGRAPHIC TELEPRINTER EQUIPMENT Filed Jan. 6, 1964 26 Sheets-Sheet l7 &

I 054 I I Inventors KARE R- MG/S/NGSET ll/AR No Oct. 24, 1967 ME|s|NGsET ET AL 3,349,175

METHOD FOR SYNCHR'ONIZING CRYPTOGRAPHIC TELEPRINTER EQUIPMENT Filed Jan. 6, 1964 26 Sheets-Sheet l8 l M's 2/ L2 L4 InvenlorS KARE R.ME/.5//VG$T IVAR MO Oct. 24, 1967 K. R. MEISINGSET ET AL 3,349,175

METHOD FOR SYNGHRONIZING CRYPTOGRAPHIC TELEPRINTER EQUIPMENT Filed Jan. 6, 1964 26 Sheets-Sheet 19 l n 0e n I 0 r5 R4 R6 R. ME/Sl/VGSE? /VAR Mo

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2924658 *Jul 9, 1957Feb 9, 1960Teletype CorpSynchronous electronic multiplex telegraph ciphering system
US3185765 *Feb 17, 1961May 25, 1965SagemCipher telegraph system
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3639682 *Dec 12, 1969Feb 1, 1972Int Standard Electric CorpTelegraph line scanning system
US3878331 *Aug 10, 1973Apr 15, 1975Atchley John QDigital cryptographic system and method
US4642424 *Jan 3, 1984Feb 10, 1987At&T Information Systems Inc.Cryptographic transmission system
US6944299 *Dec 2, 1998Sep 13, 2005At&T Wireless Services, Inc.Method for synchronous encryption over a communication medium
Classifications
U.S. Classification380/262, 178/4
International ClassificationH04L9/12
Cooperative ClassificationH04L9/12
European ClassificationH04L9/12